private void DrawAPath(SKCanvas canvas, SKPaint paint, DrawPath drawPath)
{
using (var path = new SKPath())
{
// nasty hack because the Cocoa version defaults to Black
var pathColorName = (drawPath.color == "Black") ? "Charcoal" : drawPath.color;
var pathColor = SwatchColor.ColorsByName[pathColorName].Color;
paint.Color = pathColor;
var isFirst = true;
foreach (var point in drawPath.points)
{
// for compatibility with iOS Realm, stores floats, normalised to NORMALISE_TO
var fx = (float)point.x;
var fy = (float)point.y;
ScalePointsToDraw(ref fx, ref fy);
if (isFirst)
{
isFirst = false;
path.MoveTo(fx, fy);
}
else
{
path.LineTo(fx, fy);
}
}
canvas.DrawPath(path, paint);
}
}
public void StartDrawing(float inX, float inY)
{
_currentlyDrawing = null; // don't clear in Stop as will lose last point, clear when we know done
_ignoringTouches = false;
// when not logged in, entire screen acts as control area that will trigger CredentialsEditor
if (TouchInControlArea(inX, inY))
{
_ignoringTouches = true;
return;
}
// check if needs login, eg: if login failed and touch blank screen should cope
if (_realm == null)
{
if (!_waitingForLogin)
{
LoginToServerAsync();
}
return; // not yet logged into server, let next touch invoke us
}
_lastX = inX;
_lastY = inY;
// start a local path for responsive drawing
_currentlyDrawing = new SKPath();
_currentlyDrawing.MoveTo(inX, inY);
ScalePointsToStore(ref inX, ref inY);
_isDrawing = true;
_realm.Write(() =>
{
_drawPath = new DrawPath {
color = CurrentColor.Name
}; // Realm saves name of color
_drawPath.points.Add(new DrawPoint {
x = inX, y = inY
});
_realm.Add(_drawPath);
});
}